NPPES file of Aug 9, 2026

Glenn Stewart Katz, M.D.

Pediatric Adolescent Medicine Physician · San Clemente, CA

Glenn Stewart Katz, M.D. is a pediatric adolescent medicine physician with a practice address in San Clemente, California, and NPI 1336230267, issued on Sep 27, 2006. Check the license (California G035304, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1336230267
Name
Glenn Stewart Katz
Credential
M.D.
Primary taxonomy
Pediatric Adolescent Medicine Physician 2080A0000X
License number
G035304 CA
Self-reported in NPPES; status is on the state search
Practice location
3553 Camino Mira Costa, San Clemente, CA 92672
Phone
(949) 661-8014
Enumerated
Sep 27, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 3553 Camino Mira Costa

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. William Brownson, D.D.S.General Practice Dentistry1659481091
  2. Scott Daly, H.A.D.Hearing Instrument Specialist1073934154
  3. Ronald McGee, MDFamily Medicine Physician1891812350
  4. Vanessa Neal, MDPediatrics Physician1396945770
  5. William Schade, AUDHearing Instrument Specialist1477626430
  6. Amber Scheppers-BarrHearing Instrument Specialist1710546684

Verify Glenn Stewart Katz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G035304
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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Glenn Stewart Katz among 280 pediatric adolescent medicine physician records in California

Glenn Stewart Katz, M.D. is one of 280 pediatric adolescent medicine physician records with a practice address in California. 42% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 37% newer
  • In a Medicare fileNo · 42% of these records are
  • In the CMS Doctors and Clinicians fileNo · 5% of these records are
  • Record last updated2007 · 72% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080A0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Pediatric Adolescent Medicine Physician providers in California

There are 280 pediatric adolescent medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 pediatric adolescent medicine physician records with the nearest ZIP codes

  1. Katherine Teeple, A84177San Clemente, CA 926731144375791
  2. Jennifer Johnson, M.D.Newport Beach, CA 926601982648192
  3. Jan Johnson, BJ6359271Aliso Viejo, CA 926561326193632
  4. Mary Ann Wilkinson, G067652Laguna Hills, CA 926531427103365
  5. Catharina Wolde-Yohannes, A052811Laguna Hills, CA 926531831244771
  6. Eleanor Blatt, M.D.Huntington Beach, CA 926481578804084
  7. Michelle Bennett, M.D.Huntington Beach, CA 926471598726507
  8. Hsin Chang, M.D.Huntington Beach, CA 926471528096559

Common questions

What is Glenn Stewart Katz, M.D.'s NPI number?

Glenn Stewart Katz, M.D.'s National Provider Identifier (NPI) is 1336230267, issued on Sep 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Glenn Stewart Katz, M.D. located?

The NPPES record lists a practice address at 3553 Camino Mira Costa, San Clemente, CA, 92672. Phone: (949) 661-8014. Providers update this record themselves, so call before visiting.

How can I verify Glenn Stewart Katz, M.D.'s license?

NPPES lists California license number G035304, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.